html, body, table, td { margin: 0; padding: 0; }
.gameboard > table {
	border-collapse: separate;
	border-spacing: 5px;
	margin: 0 auto;
}
.gameboard > table td.square {
	border: 1px solid #333;
	width: 50px;
	height: 50px;

	-moz-user-select: -moz-none;
	-khtml-user-select: none;
	-webkit-user-select: none;
	/*
	Introduced in IE 10.
	See http://ie.microsoft.com/testdrive/HTML5/msUserSelect/
	*/
	-ms-user-select: none;
	user-select: none;

	position: relative;
	padding: 0; 
}
.gameboard .tick {
	display: inline-block; 
	height: 5px; width: 5px; 
	background-color: #333;
	margin: 5px; 
}
